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Python

I'm getting errors

I'm stuck on the Flask project - I keep getting errors and I don't understand where I'm going wrong

1 Answer

Post your code and task your on so we can see and help.

TACOCAT.PY

from flask import Flask, g, render_template, flash, redirect, url_for from flask.ext.login import LoginManager, login_user, logout_user, login_required, current_user from flask.ext.bcrypt import check_password_hash

import models import forms

DEBUG = True PORT = 8000 HOST = '0.0.0.0'

app = Flask(name) app.secret_key = 'let this be the secret key'

login_manager = LoginManager() login_manager.init_app(app) login_manager.login_view = 'login'

@login_manager.user_loader def load_user(userid): try: return models.User.get(models.User.id == userid) except models.DoesNotExist: return None

@app.before_request def before_request(): """Connect to database before each request""" g.db = models.DATABASE g.db.connect() g.user=current_user

@app.after_request def after_request(response): """Disconnect from database after each request""" g.db.close() return response

@app.route('/register', methods=['GET', 'POST']) def register(): form = forms.RegisterForm() if form.validate_on_submit(): flash('Registered successfully', 'success') models.User.create_user( email= form.email.data, password=form.password.data ) return redirect(url_for('index')) return render_template('register.html', form=form)

@app.route('/login', methods=['GET', 'POST']) def login(): form = forms.LoginForm() if form.validate_on_submit(): try: user = models.User.get(models.User.email == form.email.data) except models.DoesNotExist: flash("Your email or password don't match", "error") else: if check_password_hash(user.password, form.password.data): login_user(user) flash('Logged in successfully', 'success') return redirect(url_for('index')) else: flash("Your email or password doesn't match", "error") return render_template('login.html', form=form)

@app.route('/logout') @login_required def logout(): logout_user() flash('Logged out successfully', 'success') return redirect(url_for('index'))

@app.route('/taco', methods=['GET', 'POST']) @login_required def taco(): form = forms.TacoForm() if form.validate_on_submit(): models.Taco.create(user=g.user._get_current_object(), protein=form.protein.data, shell=form.shell.data, cheese=form.shell.data, extras=form.extras.data.strip() ) flash('Taco has been added', 'success') return redirect(url_for('index')) return render_template('taco.html', form=form)

@app.route('/') def index(): tacos = models.Taco.select().limit(10) return render_template('index.html', tacos=tacos)

if name == 'main': models.initialize() try: with models.DATABASE.transaction(): models.User.create_user( email='moyongqaa@gmail.com', password='password' ) except ValueError: pass

app.run(debug=DEBUG, host=HOST, port=PORT)

MODELS.PY

from peewee import * import datetime from flask.ext.login import UserMixin from flask.ext.bcrypt import generate_password_hash

DATABASE = SqliteDatabase('taco.db')

class User(UserMixin, Model): email = CharField(unique=True) password = CharField(max_length=100)

class Meta:
    database = DATABASE

def get_tacos(self):
    return Taco.select().where(Taco.user == self)

 def get_stream(self):
    return Taco.select().where(Taco.user == self)

@classmethod  
def create_user(cls, email, password):
    try:
      cls.create(
        email=email,
        password=generate_password_hash(password)
      )
    except IntegrityError:
      raise ValueError('User already exists') 

class Taco(Model): user = ForeignKeyField(rel_model=User, related_name='tacos') protein = CharField(default=None) shell = CharField() cheese = BooleanField(default=False) extras = TextField()

class Meta:
    database = DATABASE 

def initialize(): DATABASE.connect() DATABASE.create_tables([User, Taco], safe=True) DATABASE.close()

FORMS.PY

from flask_wtf import Form from wtforms import StringField, PasswordField, BooleanField, TextAreaField from wtforms.validators import DataRequired, Length, EqualTo, ValidationError, Email from models import User

def email_exists(form, field): if User.select().where(User.email == field.data).exists(): raise ValidationError('User with that email already exists')

class RegisterForm(Form):
email = StringField('Email', validators=[DataRequired(), Email(), email_exists]) password = PasswordField('Password', validators=[DataRequired(), Length(min=8), EqualTo('password2', message='Passwords must match')])
password2 = PasswordField('Confirm Password', validators=[DataRequired()])

class LoginForm(Form): email = StringField('Email', validators=[DataRequired(), Email()]) password = PasswordField('Password', validators=[DataRequired()])

class TacoForm(Form): protein = StringField('Protein', validators=[DataRequired()]) shell = StringField('Shell', validators=[DataRequired()]) cheese = BooleanField('Cheese') extras = TextAreaField('Any extras?')

TEMPLATES/LAYOUT.HTML

<!doctype html> <html> <head> <title>Tacocat</title> <link rel="stylesheet" href="/static/css/normalize.css"> <link rel="stylesheet" href="/static/css/skeleton.css"> <link rel="stylesheet" href="/static/css/tacocat.css"> </head> <body> {% with messages=get_flashed_messages() %} {% if messages %} <div class="messages"> {% for message in messages %} <div class="notification"> {{ message }} </div> {% endfor %} </div> {% endif %} {% endwith %}

<div class="container">
  <div class="row">
    <div class="u-full-width">
      <nav class="menu">
        {% if current_user.is_authenticated() %}
          <a href="{{ url_for('logout') }}" title="Log out">Log Out</a>
          <a href="{{ url_for('taco') }}" title="Create taco">Create Taco</a>
        {% else %}
          <a href="{{ url_for('login') }}" title="Log in">Log In</a>
          <a href="{{ url_for('register') }}" title="Sign up">Sign Up</a>
        {% endif %}
      </nav>
      {% block content %}{% endblock %}
    </div>
  </div>
  <footer>
    <p>An MVP web app made with Flask on <a href="http://teamtreehouse.com">Treehouse</a>.</p>
  </footer>
</div>

</body> </html>

TEMPLATES/INDEX.HTML

{% extends 'layout.html' %}

{% block content %} <h2>Tacos</h2> {% if tacos.count() %} <table class="u-full-width"> <thead> <tr> <th>Protein</th> <th>Cheese?</th> <th>Shell</th> <th>Extras</th> </tr> </thead> <tbody> {% for taco in tacos %} <!-- taco attributes here --> {% endfor %} </tbody> </table> {% else %} <!-- message for missing tacos --> {% endif %} {% endblock %}